https://bugs.kde.org/show_bug.cgi?id=494918
Bug ID: 494918
Summary: Lowered brightness is not reset after screen turning
off
Classification: Applications
Product: systemsettings
Version: git-stable-Plasma/6.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_powerdevil
Assignee: plasma-b...@kde.org
Reporter: luca-cons...@live.it
CC: k...@privat.broulik.de, natalie_clar...@yahoo.de
Target Milestone: ---
SUMMARY
If you choose to change the screen brightness after some time and the screen
powers off due to its timeout for saving power, when you move the mouse and the
screen powers on again the brightness will not be restored at its original
value, but it will remain at the percentage change you set.
Moreover, the brightness change seems to be applied only to the main screen and
not on the other ones (my setup is a laptop with lid closed, connected to two
HDMI external monitors). The second monitor only powers off at the specified
interval.
STEPS TO REPRODUCE
1. Set the monitor brightness to be changed every n minutes
2. Set the monitor to power off every m minutes (m>=n)
3. Wait m minutes (i.e. wait for the screen to change brightness and also to
power off)
4. Move the mouse or do something to power on the screen again
OBSERVED RESULT
The brightness stays at the percentage at which has been set after n minutes on
the main monitor.
EXPECTED RESULT
The brightness returns at its default percentage after powering on the screen
again and those changes should happen to the second monitor, too.
I would expect an option to disable those changes when external monitors are
connected, too.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 6.2.1
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0
ADDITIONAL INFORMATION
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